Casting defects of coupler tongue in trial production of railway steel castings
The casting defects of coupler tongue include crack, sand inclusion, mechanical sand sticking and other defects. In the actual trial […]
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NDT for casting defects of cast steel joints
According to the summary, a total of 50 casting defects were found in 24 cast steel joints, and the average
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Comparative study on cutting properties of gray cast iron with different alloying treatments
In the process of gray cast iron cutting experiment, the measurement cycle is 20 s, the cutting length of the
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Development stage of numerical simulation technology of casting process
The level of numerical simulation has reached a high level in developed countries, especially in the United States and Europe
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Casting defects of coupler body in trial production of railway steel castings
The main casting defects of coupler body include crack, air hole, sand inclusion and mechanical sand sticking. The main parts
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Technology of sand casting of steel castings for boom
1.Problem description Sand casting boom steel casting, steel casting No. 322232642, is an accessory of atlas process engineering machinery rock
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Critical wall thickness and inner wall thickness of steel castings
When designing steel castings, the sensitivity of the mechanical properties of cast alloys to the wall thickness of steel castings
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Analysis of casting defects of steel castings
The steel castings were trial produced in two batches, and the first time was qualified, and the second time there
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Shrinkage defects of castings of different materials
The shrinkage rates of several common iron carbon alloys are shown in the table. It can be seen from the
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Comparative study on Microstructure of gray cast iron with different alloying treatments
The graphite morphology of the two gray cast iron samples is shown in Figure 1. It can be seen from
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Setting of linear shrinkage of sand castings
After any liquid metal is injected into the mold, it goes through three interrelated shrinkage stages from pouring temperature to
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Minimum wall thickness of steel castings
Thin wall structure accounts for more than 65%, the wall thickness of thin wall is 14-15mm, and the wall thickness
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Ultrasonic flaw detection of cast steel joints
After visual and magnetic particle flaw detection of cast steel joints, ultrasonic flaw detection shall be further carried out. Ultrasonic
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Pretreatment of sand casting process simulation
1. Model transformation and mesh generation The coupler body and sand casting process are modeled by proe and exported by
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Cost of molding materials for sand casting of steel castings
① Furan resin sand process The average amount of resin added is 0.9%, the amount of curing agent added accounts
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Causes of shrinkage defects in castings
The basic cause of concentrated shrinkage defects in castings is that the liquid shrinkage and solidification shrinkage of the alloy
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Comparative study on mechanical properties of gray cast iron with different alloying treatments
The multi-element alloy additive is designed according to the research results at home and abroad on the influence of Alloying
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Characteristics and original process of sand casting steel castings
The coupler body of type 17 coupler is a complex medium and small steel casting with the overall size of
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Effect of alloying elements Cu and Cr on cutting properties of gray cast iron
In the process of gray cast iron cutting experiment, the measurement cycle is 20 s, the cutting length of the
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Quality inspection results of railway steel castings
During the trial production of coupler steel castings, the process scheme is continuously optimized and the casting quality is continuously
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Optimization of sand casting coupler tongue
The coupler knuckle is connected with the coupler body through the coupler knuckle pin. During the operation of the vehicle
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Visual inspection for cast steel joints
Visual inspection is not only the first step in the delivery inspection of cast steel joints, but also an essential
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Effect of alloying elements Cu and Cr on Microstructure of gray cast iron
Due to the existence of graphite in common gray cast iron, and the tensile strength of graphite is almost zero,
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Trial production of sand casting process for coupler tongue
After the production line of type 16 knuckle product is arranged and runs well, the trial production of the product
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Optimization simulation of casting process of coupler body
The improved process scheme is adopted for the hook body steel casting to simulate the mold filling and solidification process.
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Analysis of simulation results of optimization of sand casting process for coupler tongue
The hook tongue adopts the improved sand casting process scheme to simulate the mold filling and solidification process. The pouring
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Optimization design of sand core and sand mold in sand casting
There are 14 sand cores in the motor shell in total, and the assembly of sand cores is shown in
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Influence of different China standards on defect grade of steel castings
In terms of detection methods, GB7233-09 focuses on the near-field area of ultrasonic flaw detection, and adds a near-field resolution
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Analysis on solidification process of original casting process of coupler tongue
Figures 1 to 3 show the simulation analysis results of the casting solidification process of the hook tongue. Figure 1
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Simulation of mold filling process of original casting process of coupler tongue
Figure 1 to figure 4 show the simulation analysis results of the hook tongue filling process. Figure 1 shows the